Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.


Resources on Connecticut weather

Weather and Climate in Connecticut

Historical weather and climate information for Connecticut is available from a wide range of sources

See pages for Connecticut Disasters for information on floods, hurricanes, tornadoes, blizzards, earthquakes

U.S. Local Climatological Data summarizes temperature, relative humidity, precipitation, cloudiness, wind speed and direction observations. For free online access to data from July 1996, produced monthly and annually for about 270 cities, consult a librarian at the Connecticut State Library at 860-757-6500.

Other NCDC publications available at the State Library include Climatological Data Publication ; Hourly Precipitation Data Publication/Database and ome titles are available for free at the NCDC web site.

The library also houses historical issues of Local Climatological Data for Hartford (Bradley Airport), Bridgeport, and New Haven as well as other cities throughout the United States, in paper and/or microform formats. In addition to Local Climatological Data, other historical resources available include Climatological Data. New England ; Forecasts ... for Hartford and Vicinity ; Hourly Precipitation Data. New England ; New England Weather Service Bulletin ; and U.S. Monthly Weather Review.

National Climatic Data Center

Certification Information
A detailed description of the types of certification offered by the National Climatic Data Center with information about ordering certified copies.

Climate at a Glance
Temperature and precipitation data for Connecticut, 1895 to the present.

Connecticut State Climate Center
Offers links to current weather sites, climate data resources and some statistics.

Daily Weather History
From the Old Farmer's Almanac, daily weather history for Hartford and other Connecticut weather stations, generally from Jan. 1, 1973 to the present, within 10 days. Access requires free registration.

Precipitation Totals and more compiled by the Connecticut Agricultural Experiment Station, including data for Mount Carmel, Hamden, Connecticut from 1931-1960 and 1993 to present.

Weather Station Locator
View a list of weather observation stations in Connecticut.